Tamron 17-28mm f/2.8 Di III RXD Wide Angle Zoom Lens for Sony E-Mount

The Tamron 17-28mm f/2.8 Di III RXD is an impressively compact and lightweight ultra-wide zoom lens for Sony full-frame E-mount cameras that punches well above its weight in optical performance and feature set. Covering the 17-28mm range makes it ideal for landscape photography, architectural interiors, astrophotography, and environmental portraits where you want to include dramatic foreground elements and sweeping backgrounds. The constant f/2.8 maximum aperture is particularly valuable for astrophotography and indoor low-light wide-angle shots, gathering significantly more light than the f/4 kit zoom that most photographers start with. Tamron’s RXD (Rapid eXtra-silent stepping Drive) autofocus motor delivers fast and near-silent AF performance ideal for video recording where lens motor noise must be minimized. The optical formula is built around 13 elements in 11 groups with LD (Low Dispersion) and aspherical elements to control chromatic aberration and distortion across the zoom range. A moisture-resistant construction with fluorine-coated front element adds confidence in challenging weather. At just 420g, this lens is lighter than many prime alternatives in the same focal range, making it a joy to carry on extended landscape shoots.